ArticleInternational journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience2014
Cortex glial cells activation, associated with lowered mechanical thresholds and motor dysfunction, persists into adulthood after neonatal pain.
Article in International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 17 citations in OpenAlex.
- The Modulatory Effect of Motor Cortex Astrocytes on Diabetic Neuropathic Pain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021Article
- Persistent pain induces mood problems and memory loss by the involvement of cytokines, growth factors, and supraspinal glial cells.Brain, behavior, & immunity - health · 2020Article
- Role of the Prefrontal Cortex in Pain Processing.Molecular neurobiology · 2019Review
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6 authors at 2 institutions in 2 countries.
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Abstract
We investigated if changes in glial activity in cortical areas that process nociceptive stimuli persisted in adult rats after neonatal injury. Neonatal pain was induced by repetitive needle prickling on the right paw, twice per day for 15 days starting at birth. Wistar rats received either neonatal pain or tactile stimulation and were tested behaviorally for mechanical withdrawal thresholds of the paws and gait alterations, after 15 (P15) or 180 (P180) days of life. Brains from rats on P15 and P180 were immunostained for glial markers (GFAP, MCP-1, OX-42) and the following cortical areas were analyzed for immunoreactivity density: prefrontal, anterior insular, anterior cingulated, somatosensory and motor cortices. Withdrawal thresholds of the stimulated paw remained decreased on P180 after neonatal pain when compared to controls. Neonatal pain animals showed increased density for both GFAP and MCP-1 staining, but not for OX-42, in all investigated cortical areas on both experimental times (P15 and P180). Painful stimuli in the neonatal period produced pain behaviors immediately after injury that persisted in adult life, and was accompanied by increase in the glial markers density in cortical areas that process and interpret pain. Thus, long-lasting changes in cortical glial activity could be, at least in part, responsible for the persistent hyperalgesia in adult rats that suffered from neonatal pain.
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